...I have just read the documentation and tested this method. It does
indeed not work. I seems that "/usr/lib/openoffice/program/soffice.bin"
does not even try to read either "/etc/openoffice/openoffice.org", or
"/etc/openoffice/openoffice.conf", so no wonder it does not work.

It is possible that I overlooked something while debugging OpenOffice,
but I am pretty sure this _is_ a bug. Feel free to report it, otherwise
I will do it.